Clarence p



(No Model.)

G. P. GOTT;

TURNSTILE. No. 503,698. Patented Aug 22, 1393.

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IN VENTOH ahre'na I. Gait UNITED STATES PATENT OFFICE.

CLARENCE P. GOTT, OE BAYONNE, NEW JERSEY, ASSIGNOR TO HIMSELF, AND .I. SEAVER PAGE, OF NEWV YORK, N. Y.

TU RNSTiLE.

SPECIFICATION forming part of Letters Patent No. 503,698, dated August 22, 1893.

Application filed December 80, 1892. Serial No. 456,840. (No model.)

T0 at whom it may concern:

Be it known that I, CLARENCE P. GOTT, a citizen of the United States, residing at Bayonne, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Turnstiles, of which the following is a full, clear, and exact description.

My invention relates to turnstiles, the object being to provide an apparatus of this kind which shall be correct in its operation and shall make one complete movement and only one each time it is operated.

The invention consists of the details of construction which will be hereinafter described and claimed.

In the accompanying drawings, Figure 1 represents a perspective View of the apparatus controlling the turnstile, the inclosing case or post and the arms being shown in dotted lines. Fig. 2 is a plan "of a double ratchet wheel carried by the shaft.

Referring to the drawings by letter, A represents the arms of the turnstile, of which there are four.

a represents the post abovewhich the arms are mounted; this post is hollow and incloses the controlling apparatus constituting my invention.

B represents a vertical shaft carrying at its upper end the arms A and at itslower end a horizontal Wheel or disk 1). Both of these devices are tighton the shaft, and the disk is located at its lower end. The disk is provided with four vertical ratchet teeth I) each occupying one quarter of the periphery of the disk. It is also provided with four other ratchet teeth 39 which are horizontally disposed, that is, they are at right angles to the teeth I). They, however, correspond in length and position with the latter. Upon the face of the disk and just beyond the end of each tooth b is placed a lug or stop b the object of which will appear hereinafter. Upon the shaft B is placed a loose hub 0 having two arms 0' projecting therefrom in a diametrical line and with theirouter extremities pass ing into slots at located in fixed brackets d. Each arm 0 carries a roller 0 which rolls upon the upper edges of the ratchet teeth 1'). The hub c is pressed downward conwith and operates a valve 9 which controls a supply of compressed air, operating a counting mechanism; or this bar may make and break an electric circuit, or operate in any other manner to control a registering apparatus; if desired also a registering or counting apparatus may be operated direct from shaft B through a gear wheel Z1 in the manner indicated.

In registering turnstiles it is necessary that the main shaft should be turned a certain prescribed distance each time a person passes. It should be constructed so that if pressure is removed after it has been pushed a part of the way round, it will automatically continue its movement until the prescribed movement is accomplished. My invention fulfills all these conditions and its operation is as follows: The normal positions of the parts of tho turnstile are shown in the drawings. It will be observed that the rollers c are resting at the bottom of one pair of the teeth and against the vertical shoulders of the next pair. It will also be seen that the bar f is standing against one of the shoulders of the teeth b the shaft is therefore prevented from turn- 8 ing in one direction. When a person passes through the turnstile the arms A and the disk I) are turned in the direction indicated by the arrow. A certain amount of pressure must at first be applied to raise the rollers c 9:)

against the power of the spring 0 and force the elevated portions of the teeth I) under the rollers. WVhen this is done the pressure of the rollers 0 upon the inclined edges of the teeth will cause the turnstile to continue its rotation without further aid from the person passing through and it will move gently around a full quarter turn, or until the roll ers are stopped by the next suceeedingshoul ders of the teeth I). is being accomplished the lower end of the barf is riding against the edge of one of the I Vhile this movement I00 teeth b and is forced toward the center of the disk 1) until the disk comes to a stop when the end of the bar drops from the end of the tooth into the position indicated in the drawings. 111 this movement the Valve g or other registering apparatus is operated. Now, in case the person passing through the turnstile rushes violently against the arm of the turnstile, the turnstile will be prevented from making more than a quarter turn by the arm f striking the lug 6 before it has time to fall back into the position shown in Fig. 1.

It will be seen that with the two rollers 0 acting with the same pressure at diametrically opposite points on the wheel, the movement of the latter caused thereby, will be more positive and will require less aggregate force than if there was but one roller acting on one side of the wheel; as in thelatter case there would be a tendency to tip the wheel and cause friction at its bearings.

Having described my invention, I claiml. In a turnstile, the combination of the main rotary shaft carrying the arms, a disk or wheel rotated thereby, a series of ratchet teeth on said disk and a pair of springpressed rollers bearing upon said ratchet teeth at diametrically opposite points and tending to rotate the shaft, substantially as described.

2. In a turnstile, the combination of the main rotary shaft carrying the arms, a disk or wheel rotated thereby, a series of ratchet teeth on said disk and a pair of spring pressed rollers bearing upon said ratchet teeth and tending to rotate the shaft, a second series of ratchet teeth on said wheel and a pivoted arm resting against the edges of said teeth forthe purpose set forth.

3. In a turnstile the combination of the main rotary shaft carrying the arms, a disk or wheel rotated thereby, a series of ratchet teeth on said disk and a pair of spring pressed rollers bearing upon said ratchet teeth and tending to rotate the shaft, a second series of ratchet teeth on said wheel and apivoted arm resting against the edges of said teeth, and stops carried by the disk and located slightly beyond the respective ends of the second series of ratchet teeth and adapted to strike the end of said arm to stop the movement of the turnstile as described.

l. In a turnstile, the combination of the main rotary shaft carrying the arms, a disk or wheel rotated thereby, a series of ratchet teeth on said disk and a pair of spring pressed rollers bearing upon said ratchet teeth and tending to rotate the shaft, a second series of ratchet teeth on said wheel and a pivoted bar resting against the edges of said teeth, and stops carried by the disk and located slightly beyond the respective ends of the second series of ratchet teeth and adapted to strike the end of said arm to stop the movement of the turnstile, and a registering apparatus operated by said arm, substantially as described.

5. In a turnstile, the combination of a main shaft carrying a disk or wheel I), the latter provided with ratchet teeth Z), a loose hub upon the shaft, said hub carrying two arms 0 provided with rollers 0 bearing upon said ratchet teeth I) and a spring 0 forcing the rollers against the ratchet teeth for the purpose set forth.

6. In a turnstile, the combination of the main shaft carrying a wheel or disk 1) provided with ratchet teeth Z1 and stops b and the pivoted arm f resting against said ratchet teeth and adapted to impinge against the stops b to stop the movementof the turnstile, substantially as described.

In testimony whereof I subscribe my signature in presence of two witnesses.

CLARENCE I. GOTT.

lVitnesses:

FRANK S. OBER, J os. J. UHL. 

